Android PopupWindow增加半透明蒙层

先看效果图：

BasePopupWindowWithMask.class

 package com.example.popupwindowwithmask;

 import android.content.Context;
 import android.graphics.PixelFormat;
 import android.graphics.drawable.ColorDrawable;
 import android.os.IBinder;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.PopupWindow;

 /**
  * Created by kk on 2017/7/22.
  */

 public abstract class BasePopupWindowWithMask extends PopupWindow {
  protected Context context;
  private WindowManager windowManager;
  private View maskView;

  public BasePopupWindowWithMask(Context context) {
   super(context);
   this.context = context;
   windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
   setContentView(initContentView());
   setHeight(initHeight());
   setWidth(initWidth());
   setOutsideTouchable(true);
   setFocusable(true);
   setTouchable(true);
   setBackgroundDrawable(new ColorDrawable());
  }

  protected abstract View initContentView();

  protected abstract int initHeight();

  protected abstract int initWidth();

  @Override
  public void showAsDropDown(View anchor) {
   addMask(anchor.getWindowToken());
   super.showAsDropDown(anchor);
  }

  private void addMask(IBinder token) {
   WindowManager.LayoutParams wl = new WindowManager.LayoutParams();
   wl.width = WindowManager.LayoutParams.MATCH_PARENT;
   wl.height = WindowManager.LayoutParams.MATCH_PARENT;
   wl.format = PixelFormat.TRANSLUCENT;//不设置这个弹出框的透明遮罩显示为黑色
   wl.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL;//该Type描述的是形成的窗口的层级关系
   wl.token = token;//获取当前Activity中的View中的token,来依附Activity
   maskView = new View(context);
   maskView.setBackgroundColor(0x7f000000);
   maskView.setFitsSystemWindows(false);
   maskView.setOnKeyListener(new View.OnKeyListener() {
    @Override
    public boolean onKey(View v, int keyCode, KeyEvent event) {
     if (keyCode == KeyEvent.KEYCODE_BACK) {
      removeMask();
      return true;
     }
     return false;
    }
   });
   /**
    * 通过WindowManager的addView方法创建View，产生出来的View根据WindowManager.LayoutParams属性不同，效果也就不同了。
    * 比如创建系统顶级窗口，实现悬浮窗口效果！
    */
   windowManager.addView(maskView, wl);
  }

  private void removeMask() {
   if (null != maskView) {
    windowManager.removeViewImmediate(maskView);
    maskView = null;
   }
  }

  @Override
  public void dismiss() {
   removeMask();
   super.dismiss();
  }
 }

TestPopupWindow.class

 package com.example.popupwindowwithmask;

 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.WindowManager;

 /**
  * Created by kk on 2017/7/22.
  */

 public class TestPopupWindow extends BasePopupWindowWithMask {
  private int[] mIds;
  private View contentView;
  private OnItemClickListener listener;

  public interface OnItemClickListener {
   void OnItemClick(View v);
  }

  public void setOnItemClickListener(OnItemClickListener listener) {
   this.listener = listener;
  }

  public TestPopupWindow(Context context, int[] mIds) {
   super(context);
   this.mIds = mIds;

   initListener();
  }

  @Override
  protected View initContentView() {
   contentView = LayoutInflater.from(context).inflate(R.layout.pop_layout, null, false);
   return contentView;
  }

  private void initListener() {
   for (int i = ; i < mIds.length; i++) {
    contentView.findViewById(mIds[i]).setOnClickListener(new View.OnClickListener() {
     @Override
     public void onClick(View v) {
      if (null != listener) {
       listener.OnItemClick(v);
      }
      dismiss();
     }
    });
   }
  }
  @Override
  protected int initHeight() {
   return WindowManager.LayoutParams.WRAP_CONTENT;
  }
  @Override
  protected int initWidth() {
   return (int) (0.5 * UIUtils.getScreenWidth(context));
  }
 }
 MainActivity.class
 ?

 package com.example.popupwindowwithmask;

 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.view.View;
 import android.widget.TextView;
 import android.widget.Toast;

 public class MainActivity extends AppCompatActivity {
  private TextView textView;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   textView = (TextView) findViewById(R.id.tv_popup);

   final TestPopupWindow testPopupWindow = new TestPopupWindow(this, new int[]{R.id.pop_location, R.id.pop_group, R.id.pop_list});

   textView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
     testPopupWindow.showAsDropDown(textView);
    }
   });

   testPopupWindow.setOnItemClickListener(new TestPopupWindow.OnItemClickListener() {
    @Override
    public void OnItemClick(View v) {
     switch (v.getId()) {
      case R.id.pop_location:
       Toast.makeText(MainActivity.this, "地址", Toast.LENGTH_SHORT).show();
       break;
      case R.id.pop_group:
       Toast.makeText(MainActivity.this, "分组", Toast.LENGTH_SHORT).show();
       break;
      case R.id.pop_list:
       Toast.makeText(MainActivity.this, "清单", Toast.LENGTH_SHORT).show();
       break;
     }
    }
   });
  }
 }

pop_layout.xml

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">

  <RelativeLayout
   android:layout_width="wrap_content"
   android:layout_height="wrap_content">

   <RelativeLayout
    android:id="@+id/rl_indicator"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal">

    <ImageView
     android:layout_width="wrap_content"
     android:layout_height="12dp"
     android:scaleType="fitCenter"
     android:src="@drawable/filter_arrow_up" />
   </RelativeLayout>

   <LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="150dp"
    android:layout_below="@+id/rl_indicator"
    android:background="@drawable/pop_background"
    android:gravity="center_horizontal"
    android:orientation="vertical"
    android:paddingLeft="15dp"
    android:paddingRight="15dp">

    <TextView
     android:id="@+id/pop_location"
     android:layout_width="match_parent"
     android:layout_height="0dp"
     android:layout_weight=""
     android:drawableLeft="@mipmap/fault_equipment_location_icon"
     android:drawablePadding="12dp"
     android:gravity="center_vertical"
     android:text="地址"
     android:textColor="#000"
     android:textSize="16sp" />

    <View
     android:layout_width="match_parent"
     android:layout_height="0.3dp"
     android:background="#D2D2D2" />

    <TextView
     android:id="@+id/pop_group"
     android:layout_width="match_parent"
     android:layout_height="0dp"

     android:layout_weight=""
     android:drawableLeft="@mipmap/fault_equipment_grouping_icon"
     android:drawablePadding="12dp"
     android:gravity="center_vertical"
     android:text="分组"
     android:textColor="#000"
     android:textSize="16sp" />

    <View
     android:layout_width="match_parent"
     android:layout_height="0.3dp"
     android:background="#D2D2D2" />

    <TextView
     android:id="@+id/pop_list"
     android:layout_width="match_parent"
     android:layout_height="0dp"
     android:layout_weight=""
     android:drawableLeft="@mipmap/fault_equipment_list_icon"
     android:drawablePadding="12dp"
     android:gravity="center_vertical"
     android:text="清单"
     android:textColor="#000"
     android:textSize="16sp" />

   </LinearLayout>
  </RelativeLayout>
 </RelativeLayout>

pop_background.xml

 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android">
  <solid android:color="#ffffff" />
  <corners
   android:radius="5dp" />
 </shape>

UIUtils.class

 package com.example.popupwindowwithmask;

 import android.content.Context;

 /**
  * Created by kk on 2017/7/22.
  */

 public class UIUtils {
  /**
   * 获得屏幕宽度
   *
   * @param context
   * @return
   */
  public static int getScreenWidth(Context context) {
   return context.getResources().getDisplayMetrics().widthPixels;
  }

  /**
   * 获得屏幕高度
   *
   * @param context
   * @return
   */
  public static int getScreenHeight(Context context) {
   return context.getResources().getDisplayMetrics().heightPixels;
  }

 }

https://github.com/ganchuanpu/AndroidPopupWindowWithMask.git